ISO 4404-2:2003 specifies a procedure for the determination of the corrosion-inhibiting properties of non-aqueous hydraulic fluids within the category HFD, as classified in ISO 6743-4.
It provides a qualitative assessment of corrosion of five of the most common metals used in the construction of hydraulic systems, but other metals and/or alloys could be added or substituted for these metals for particular installations.
Status : WithdrawnPublication date : 2003-08
Edition : 1Number of pages : 6
Technical Committee:Petroleum and related products, fuels and lubricants from natural or synthetic sources